Team

David Aitken

Retired Partner
David has over 35 years of experience practicing exclusively in intellectual property law. He is a seasoned litigator with an...
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Marcus Klee

Managing Partner
Marcus is a seasoned trial and appellate lawyer representing clients in complex intellectual property litigation matter in all areas including...
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Jonathan Stainsby

Partner
Jon is a partner in Aitken Klee’s Toronto office. Jon is recognized by Chambers Global, Lexpert, Benchmark Litigation (Local Litigation Star),...
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Bill Mayo

Counsel
Bill’s practice involves all aspects of intellectual property law, including strategic advice, litigation, including trademark oppositions, providing clearance and validity...
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Lesley Caswell

Partner
Lesley is a partner in Aitken Klee’s Ottawa office specializing in patent issues including patent clearance and validity opinions and...
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Bryan Norrie

Partner
Bryan Norrie is a partner at Aitken Klee LLP in the Ottawa office. Bryan specializes in the litigation of pharmaceutical...
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Scott Beeser

Partner
Scott is a partner in Aitken Klee’s Toronto Office with deep experience in the pharmaceutical and biopharmaceutical sectors. Prior to...
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Jonathan Giraldi

Partner
Jonathan is a trial lawyer with over a decade of experience involving intellectual property infringement and validity proceedings. He works...
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Devin Doyle

Associate
Devin is an experienced trial and appellate lawyer who represents clients in complex intellectual property and international trade litigation. Devin...
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Aleem Abdulla

Associate
Aleem graduated from the University of Toronto Faculty of Law in 2013. He completed his articles at a well-respected national...
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Alyssa Gaffen

Associate
Alyssa Gaffen is an associate at Aitken Klee LLP, practicing in all areas of intellectual property and administrative law. Among...
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Mary Murray

Associate
Mary Murray is an associate at Aitken Klee LLP Ottawa, practicing in the area of intellectual property litigation. At the...
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Rob Youngson

Associate
Rob Youngson is an associate at Aitken Klee LLP in Toronto, practicing in the area of intellectual property litigation. Rob...
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Yoo Jung Jung

Associate
Yoo Jung Jung completed her articles at a large Canadian firm in 2022. Yoo Jung was previously a summer intern...
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Émilie-Anne Fleury, P.Eng.

Associate
Prior to starting as an associate at Aitken Klee LLP, Émilie clerked at the Federal Court of Appeal for the...
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Kevin Voth

Student
Kevin Voth is an articling student at Aitken Klee LLP Ottawa. Kevin assists with legal research and drafting. At the...
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Dawn Trach

Law Clerk
Dawn is an Intellectual Property Litigation law clerk. Dawn assists with electronic and paper document management, preparation of documents used...
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Jennifer Nahorniak

Law Clerk
Jennifer is law clerk specializing in Intellectual Property litigation matters in a variety of industries. Jennifer provides lawyers with support...
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